Hi, trying to find how to store a large amount (>10000 rows/sec) of rows in a table that has indexes on "random values" columns, I found: http://en.wikipedia.org/wiki/TokuDB Basically, instead of using btrees (which kill insert performance for random values on large tables) they use a different type of index, which they call "fractal". If what they claim is true, insert performance in those cases (as I said, indexes on columns with highly random data) is much faster (x80 times faster!!!) I read some of the papers at: http://supertech.csail.mit.edu/cacheObliviousBTree.html I think it's a very interesting approach... instead of relying on disks random access times, they use sequential access... I was wondering: 1) has anyone looked at the papers? 2) I don't understand how they made it concurrent... -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
